If you do test it, please feedback to me if there are any text not translated properly or can be improved. Thanks alot.

Example of WP-UserOnline: You need to create a new .po based on the .pot then after translating you need to save as for example: wp-useronline-de_DE.po where de_DE is your language. The poedit (I assume you are using poedit) will generate a file called wp-useronline-de_DE.mo.

Note: make sure that both files are in wp-content/plugins/useronline

AJAX
WP-Polls and WP-UserOnline now processes AJAX in their own file like polls.php and useronline.php instead of index.php. I think in this way it will be faster and it will have lesser conflicts with other plugins. I have also removed the Javascript variable site_url in them because it is not used.

I wonder if anybody is interested in this plugin which I think I may name it WP-Downloads. I ported it over from my WP 1.5.2 Site (http://www.lesterchan.net/blogs/) and modify it a little to be WP 2.0 friendly. What it does is basically add a little Download Section in your WordPress site. It will just keep track of how many times a file is downloaded. It will be a single page Download Section with categories to separate the files. I am still considering whether or not to add a upload feature to it as PHP only supports maximum 2MB of upload. Right now you have to upload the file to a directory set in the option page. I have not coded the user side yet, but the admin side is more or less done.